[INNOVATIVE TECHNOLOGY] - Every Bosch Oxygen Sensor benefits from the technological and manufacturing experience gained from decades of production since first inventing the Oxygen Sensor in the late 1960's, ensuring long-lasting performance [FACTORY TESTED] - Seared appearance of protection tube is a result of a 100 percent fully functional quality test to ensure every Bosch manufactured sensor meets Bosch's rigorous standards for quality and performance [STAINLESS STEEL BODY] - Exclusive double laser-welded stainless steel body is totally submersible and sealed tight to protect against damage from exhaust emissions - ensuring longer sensor service life [FAST ACTING HEATER] - Fast-acting heater optimizes sensor operation on Planar and 3, 4, and 5 wire Thimble type sensors allowing the oxygen sensor to reach its operating temperature quicker - within seconds - for optimum performance [READY TO INSTALL] - True Direct-fit OE connectors and harnesses, along with threads pre-coated with anti-seize compound right out of the box, make installation simple and easy Compatible with select vehicles (Note: engine may affect fitment - verify specific fitment details, including sensor position, with fit checker above): CHEVROLET: 1996-99 C1500/C1500 Suburban, 1996-00 C2500/C3500, 1996-99 C2500 Suburban Compatible with (continued): CHEVROLET: 1996-99 C3500HD, 1996-02 Express 2500/3500, 1996-99 K1500/K1500 Suburban, 1996-00 K2500, 1996-99 K2500 Suburban, 1996-00 K3500, 1996-99 P30, 1999-00 Silverado 2500, 2000 Suburban 2500 Compatible with (continued): CHEVROLET: 1996-00 Tahoe; GMC: 1996-99 C1500/C1500 Suburban, 1996-00 C2500/C3500, 1996-99 C2500 Suburban, 1996-99 C3500HD, 1996-99 K1500/K1500 Suburban, 1996-00 K2500, 1996-1999 K2500 Suburban Compatible with (continued): GMC: 1996-00 K3500, 1996-99 P3500, 1996-02 Savana 2500/3500, 1999-00 Sierra 2500, 1996-00 Yukon, 2000 Yukon XL 2500